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Angelina_Jolie [31]
2 years ago
7

Plss help me solve these 2 !!!!!!!!!!! for a brainlist ;))

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
3 0

Answer:

1. d

2. a

Step-by-step explanation:

Thats how it goes!

Branliest plzzz

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The course grade in a statistics class is the average of the scores on five examinations. Suppose that a student's scores on the
nadya68 [22]

Answer:

84 is the highest possible course average

Step-by-step explanation:

Total number of examinations = 5

Average = sum of scores in each examination/total number of examinations

Let the score for the last examination be x.

Average = (66+78+94+83+x)/5 = y

5y = 321+x

x = 5y -321

If y = 6, x = 5×6 -321 =-291.the student cannot score -291

If y = 80, x = 5×80 -321 =79.he can still score higher

If If y = 84, x = 5×84 -321 =99.This would be the highest possible course average after the last examination.

If y= 100

The average cannot be 100 as student cannot score 179(maximum score is 100)

8 0
3 years ago
352, 345, 338, ...<br> Find the 43rd term.
Artemon [7]

Answer:

Step-by-step explanation:

first term = a = 352

Common difference = d = second term - first term

                                  = 345 - 352

                                   = (-7)

nth term = a + (n-1)*d

43rd term = 352 + (43-1)*(-7)

                 = 352 + 42 *(-7)

                  = 352 - 294

                  = 58

3 0
2 years ago
HELP! please! ASAP! pleasee
murzikaleks [220]

Answer:

11.9

Step-by-step explanation:

I just know this off the top of my head

The real one is 11.18034

3 0
2 years ago
Draw the two-dimensional shape<br> that makes up the faces of this<br> solid shape.
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Answer:

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Step-by-step explanation:

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2 years ago
Find m angle Y
LiRa [457]
I think it is A 54 because I did it already and I got a 100
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3 years ago
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